Results 21 to 30 of about 16,348 (266)

To the problem of linear conjugation

Researches in Mathematics, 2021
To the problem of linear conjugation.
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Investigation of the Stress State of a Composite in the Form of a Layer and a Half Space with a Longitudinal Cylindrical Cavity at Stresses Given on Boundary Surfaces [PDF]

Journal of Mechanical Engineering, 2019
An analytical-numerical approach to solving the spatial problem of the theory of elasticity for a half-space rigidly coupled to a layer is proposed. In the half-space, parallel to its boundaries, there is an infinite circular cylindrical cavity. Both the
Vitalii Yu. Miroshnikov
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A parabolic conjugation problem with general boundary condition and a conjugation condition of Wentzel type

Karpatsʹkì Matematičnì Publìkacìï, 2013
We consider the question of existence in Holder class of a solution of an initial-boundary problem for linear parabolic second-degree equation with discontinuous coefficients with a boundary condition and a conjugation condition which are defined by ...
B. I. Kopytko, O. Ya. Mylyo, Zh. Ya. Tsapovska   +2 more
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A rational conjugate gradient method for linear ill-conditioned problems

CoRR, 2023
We consider linear ill-conditioned operator equations in a Hilbert space setting. Motivated by the aggregation method, we consider approximate solutions constructed from linear combinations of Tikhonov regularization, which amounts to finding solutions in a rational Krylov space.
Stefan Kindermann 0001, Werner Zellinger
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Analysis and methodology of determining the norm of eigenfunctions as a limit transition in the scalar product in the spectral Stourm-Louvile problem for a photonic one-dimensional crystal

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023
Relevance The last of the decades (approximately from the 90s of the 20th century) to rapid grow of photonics. That's why, firstly, relevance this work is related to relevance diffraction problems for the structures of optics ranges (photonic crystal ...
О.V. Kazanko, О.E. Penkina
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Phylogeny-corrected identification of microbial gene families relevant to human gut colonization. [PDF]

PLoS Computational Biology, 2018
The mechanisms by which different microbes colonize the healthy human gut versus other body sites, the gut in disease states, or other environments remain largely unknown.
Patrick H Bradley, Stephen Nayfach, Katherine S Pollard   +2 more
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Genomic Surveillance of Vancomycin-Resistant Enterococcus faecium Reveals Spread of a Linear Plasmid Conferring a Nutrient Utilization Advantage

mBio, 2022
Healthcare-associated outbreaks of vancomycin-resistant Enterococcus faecium (VREfm) are a worldwide problem with increasing prevalence. The genomic plasticity of this hospital-adapted pathogen contributes to its efficient spread despite infection ...
Mathilde Boumasmoud, Vanina Dengler Haunreiter, Tiziano A. Schweizer, Lilly Meyer, Bhavya Chakrakodi, Peter W. Schreiber, Kati Seidl, Denise Kühnert, Roger D. Kouyos, Annelies S. Zinkernagel   +9 more
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MAIN FACTORS OF THE NEGATIVE IMPACT OF THE COVID-19 PANDEMIC ON MENTAL HEALTH OF CHILDREN

Медична наука України, 2022
Relevance. It is widely recognized that COVID-19 disease is significant problem for public health. The COVID-19 pandemic evolves, the long-term health impacts are continually increasing and children health is particular concern.  The duration of exposure,
S.V. Hozak, O.T. Yelizarova, T.V. Stankevych, A.N. Parats   +3 more
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Conjugate point properties for linear quadratic problems

Journal of Mathematical Analysis and Applications, 1976
AbstractAnalogs of certain conjugate point properties in the calculus of variations are developed for optimal control problems. The main result in this direction is concerned with the characterization of a parameterized family of extremals going through the first backward conjugate point, tc.
Mereau, P. M., Powers, William Francis
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A method of defining a class of linear conjugation problems for two-dimensional vector with closed-form solutions

Учёные записки Казанского университета: Серия Физико-математические науки
The problem of linear conjugation for a two-dimensional piecewise analytic vector was reduced to an equivalent problem of fractional linear conjugation, and a connection between their solutions was established.
S. N. Kiyasov
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